Description of problem:
Ran /usr/bin/seaf-cli start after upgrading to Fedora 32.

It appears python3-future was not pulled in on the upgrade but is required.

Version-Release number of selected component:
seafile-7.0.4-2.fc32

Additional info:
reporter:       libreport-2.12.0
cgroup:         0::/user.slice/user-1000.slice/user/seafile.service
cmdline:        /usr/bin/python3 /usr/bin/seaf-cli start
crash_function: module
exception_type: ModuleNotFoundError
executable:     /usr/bin/seaf-cli
interpreter:    python3-3.8.2-2.fc32.x86_64
kernel:         5.6.6-300.fc32.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
seaf-cli:86:<module>:ModuleNotFoundError: No module named 'future'

Traceback (most recent call last):
  File "/usr/bin/seaf-cli", line 86, in <module>
    from future import standard_library
ModuleNotFoundError: No module named 'future'

Local variables in innermost frame:
__name__: '__main__'
__doc__: '\n\nseaf-cli is command line interface for seafile client.\n\nSubcommands:\n\n    init:             create config files for seafile client\n    start:            start and run seafile client as daemon\n    stop:             stop seafile client\n    list:             list local libraries\n    status:           show syncing status\n    download:         download a library from seafile server\n                          (using libary id)\n    download-by-name: download a library from seafile server\n                          (using library name)\n    sync:             synchronize an existing folder with a library in\n                          seafile server\n    desync:           desynchronize a library with seafile server\n    create:           create a new library\n\n\nDetail\n======\n\nSeafile client stores all its configure information in a config dir. The default location is `~/.ccnet`. All the commands below accept an option `-c <config-dir>`.\n\ninit\n----\nInitialize seafile client. This command initializes the config dir. It also creates sub-directories `seafile-data` and `seafile` under `parent-dir`. `seafile-data` is used to store internal data, while `seafile` is used as the default location put downloaded libraries.\n\n    seaf-cli init [-c <config-dir>] -d <parent-dir>\n\nstart\n-----\nStart seafile client. This command starts `seaf-daemon`, which manages all the files.\n\n    seaf-cli start [-c <config-dir>]\n\nstop\n----\nStop seafile client.\n\n    seaf-cli stop [-c <config-dir>]\n\n\nDownload by id\n--------\nDownload a library from seafile server (using library id)\n\n    seaf-cli download -l <library-id> -s <seahub-server-url> -d <parent-directory> -u <username> -p <password> [-a <2fa-code>]\n\n\nDownload by name\n--------\nDownload a library from seafile server (using library name)\n\n    seaf-cli download -L <library-name> -s <seahub-server-url> -d <parent-directory> -u <username> -p <password> [-a <2fa-code>]\n\n\nsync\n----\nSynchronize a library with an existing folder.\n\n    seaf-cli sync -l <library-id> -s <seahub-server-url> -d <existing-folder> -u <username> -p <password> [-a <2fa-code>]\n\ndesync\n------\nDesynchronize a library from seafile server\n\n    seaf-cli desync -d <existing-folder>\n\ncreate\n------\nCreate a new library\n\n    seaf-cli create -s <seahub-server-url> -n <library-name> -u <username> -p <password> [-a <2fa-code>] -t <description> [-e <library-password>]\n\n'
__package__: None
__loader__: <_frozen_importlib_external.SourceFileLoader object at 0x7f3966c23be0>
__spec__: None
__annotations__: {}
__builtins__: <module 'builtins' (built-in)>
__file__: '/usr/bin/seaf-cli'
__cached__: None
print_function: _Feature((2, 6, 0, 'alpha', 2), (3, 0, 0, 'alpha', 0), 65536)
division: _Feature((2, 2, 0, 'alpha', 2), (3, 0, 0, 'alpha', 0), 8192)